Coupled multiphase fluid flow and wellbore stability analysis associated with gas production from oceanic hydrate-bearing sediments

► We modeled wellbore stability during gas production from an oceanic hydrate deposit. ► Vertical compaction and increased shear stress caused yielding around the well assembly. ► Such yielding and shearing of the sediments could lead to enhanced sand production. ► Yielding can be reduced by overbalanced drilling and appropriate well completion. ► Compaction strain of up to 10% could significantly impact the well assembly.